The SharePoint Graph module currently supports creating files, folders, and list items — but offers no way to modify them after creation. Renaming an uploaded file or updating metadata on a list item are among the most common SharePoint integration scenarios, and their absence forces consumers to drop down to raw HTTP calls.

What is good to have:

**Update drive items** — rename files/folders or update arbitrary properties (name, description, etc.) by ID or path via `PATCH /drive/items/{id}`.

**Update list item fields** — modify field values on existing list items via `PATCH /lists/{id}/items/{id}/fields`. Includes a companion `GetListItem` single-item getter that was missing from the public API.

**Multi-response test handler** — the mock HTTP handler now supports queued responses, enabling end-to-end testing of operations that issue multiple consecutive HTTP calls (resolve path then execute, or PATCH then follow-up GET).